Skin and intestine lining cells both belong to the same category, epithelial cells. However, intestinal cells have many finger-like surface protrusions, called villi, while skin cells do not. What is the most likely reason for the difference?

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

the answer is "a.) well–developed vascular system."

explanation: